Suction cleaners



ATTYS.

May 12, 1959 c T DENKER SUCTION CLEANERS Filed Aug. 19, 1.955

.t SUC'IIONCLEANERS Chaucer; Denker, Chicago, 111.

pplication August 19, less, Serial No. 529,541 t ,1 Claim.1 (ll.1 83 ,22)

This invention relates generally to suctionflcleaners,

. and more particularly to improved apparatus for separatingudustirom. the air moved bysuch cleaner in the cleaningoperation. I a

--:It is-a principal object of 'theqinvention to provide a.

device, fortseparatingdust from the dust laden air from a suction type cleaner, such device being mounted for movement with the cleaner, and being eflective for separation ofrdust during all thewusual ranges ofm'ovementof the operating handle of such cleaner. H i

Another object of the invention isto. provide an improved'tdevice for use inconnection with apparatus of the: general class described, such dustseparating device being characterized by atank having a partitionwhich separates the tank into a lowerqliquid containing chamq 30 its -dust-jcontent-by beingb'ubbled below the level of. the; liquidrcontained. in the lower chamber and being separatedfrom its entrained water content inthe upperher :and an upper chamber, the air being separated from chamber, the .detrained liquidhbeing capableof being returned to the lower chamber.

"Another-object .of the invention 'comprehends, the pro- 1. vision of a transversely extending partition which per- 11 forms the'function ofsepa'rating a cleaningitank intoi upper and lower lchambers, said tank being normally held? in :;a: position where the; partition acts as a bathe during the :pas'sageoftdust laden ai'r ina lower-liquid containing; chamber, said partitionin a tilted position of the walled tank maintaining the liquid in one of two side by side chambers, so that there is no possibility of'the liquid leaking from the other chamber.

Other objects and important features of the invention i l be apparentlirqm st dy, of. he. specification q nat ken. w th. th d w ich t r e be; and lustr te a et diment ofth onxa d w etzi iqmcoasidsrqdtq be the e t mod of p c ic n the principles thereof. Other embodiments of the invention may be suggested to those having the benefit of the teachings herein, and it is therefore intended that the scope of the invention not be limited by the precise embodiment herein shown, such other embodiments being Fig. 3 is a top plan View of the tank seen in Fig. 2,

said view being taken along the line 3-3 of Fig. 2 looking in the directionof the arrows;

Fig. 4 is a transverse sectional view taken alongthe a -smelt Mal sia -1959 1inez4-t4 of Fig. 2, looking in the directionof the arrows; and.*.' 1 X new: Fig. isi'atransverse sectional view taken along the. line 15- -5 of Fig. .2 .and looking in the direction of the r arrows. 1 31 Referring now to Fig. l of the drawings there isshown: a suction cleaner indicated generallywby. thesreference numeral10,and includingahousing 11 mounted for movement upon wheels tl2. The suction cleaner 10 can; bemoved to and fro upon the wheels 12 by meanswofr an operating, handle 13. whichisbifurcated at 'its lower end as. at 14, said bifurcated lower endbeing pivoted as at.16 toth ehousing 11,:so thatxifdesired the cleaner can 1 be operated,beneath. tablesechairs or. the like. ..The housing 11 contains suctiongmeans,consisting-Lot amotorkand jan impeller; not shown,.air being drawn; through a suction .opening .17 at the forward end ofthea housing 11.,andibeing discharged at a passageway 18.1 1 1 The dust ladenainfrom the suction cleauer10 is arranged to be scrubbed orirer'novedof .its dust content withinatank20.

1 Referring'now to Figs. 2 to 5 of the drawing, 'thetank 20, has abottom wall 19. with flange-like extension21 extending downward therefrom and a side walliof cylin-w drical form extending upwardly therefrom; The tank 20:

t is arranged to be supported at itslower end by means.

of a bracket 22secured at one end to Tthe operatinghandle 13.]and,secured;at its other end to: the flange-like extenv SiOI121. ,m 1 lll Theupper end of the tank 20is provided witha closure 23 which has jan inturned annularflange 24 whichwsup-.:;

ports a gasket26 which bears against an H -upper, rim. 27

. of the; tank 20. The closure23 for theupperendofthel i 36 held in ,the locking arm 32 -and: bearingj against ,the

tank 20has diametrically opposedbayonetslots 1.28 which cooperate with bayonet pins 29, extending inwardly, from. the closure 23 .to cause ,the; closure 23 to i be firmly :e gagedwithzthetank 20.

The upper end of the tank 20 and its closure .23 are:

secured to the operating handle 13 ,aby, meansof ahandles or bail 31 extending from closure 23, the 'bail :31 bei'n'gv engaged-by a ,pair of. locking arms 32 land} 33,;lo'ckingw. arm .32 being; secured to the 1handled3, and lockingarm: 33.being pivoted ,with respect to thelocking arm 32at a; pivot point 34.- The two, locking:;arms. 32 and; 33,:are biased to the locking positionshown by? means on a spring 1ockingarm-334p 1 .1 r

Theflangelike extension 21; from the;1ower':wal1@19 the tank 20 forms a support for an entranttend "37i Ofii a. pipe .38 which passes; through; a body of liquid 39.; contained in the lower end of the tank 20. The entrant pipe 38 extends upward through the body of liquid 39 and is reversed upon itself so that its discharge end 41 extends beneath the body of liquid 39. The pipe 38 is supported in part by a partition 42 or baflzle, which is inclined in the manner shown with respect to the longitudinal axis of the tank 20. Thus, the partition 42 is in the form of a solid member or water-tight bulkhead engaged at one end within the tank at the. side spaced the greater distance from the handle 13 and at a point removed a substantial predetermined distance from the bottom wall of the tank. The partition 42 extends toward the opposite side of the tankwhich is nearer the handle 13, and complementally engages the inside of the tank for substantially the entire periphery to seal off a lower chamber 50. The partition 42 is progressively inclined from said one end in the direction of the bottom wall of the tank so that the partition 42 is progressively closer to the bottom wall of the tank in the portion outwardly of the said one end thereof. Partition 42 has openings 43 and 44 therein for the bends of the pipe 38 which may be welded to the partition 42 at such openings.

The partition 42 is welded along its periphery to the inside of the cylindrical .wallofthe tank 20, but has a relieved portion 46 which provides a passageway 47 for air which has been bubbled through the body of liquid 39.

"The:fla'nge' 'likei'exteirsioii 211is connected to thepas sageway 18 for dust laden air from the cleaner 10 by means of a short length of flexible hose .48. whichis held by a'fhose*clamp 49 at its. upper-end to the flange-like'i extension 21 and at its lower end to the passageway 18- with a suitable baffle or difiuser 52. to finelydivide the air bubbling beneath the liquid'39. Duringysuch action the body of liquid is ag i tated rather violently but it is confined to thelower chamber by the inclined baffle 42.

'.It ,will'be noted that the opening 41 is in a direction so as to cause currents of dust-laden air and liquid to be directed away from the passageway 47 and underneath the partition 42 at points remote from the passageway 47. The placingof the pipe opening41 in the manner described tends to prevent liquid from'being forcedfrom chamber 50 by way of passageway 47.

. The air which has been separated from its dust content thence moves through the passageway 47 into an upper chamber 53.- The closure 23 has a plurality of openings 54 therein, through whichthe' cleaned air may escape from the tank 20. However, prior to the escape of the cleaned air througlithe openings 54, it is detrained of its water content by means of a' generally bell sha'p'ed batfle 56 which has a diameter somewhat less than the inner diameter of thetank 20to'provide an annular passageway 57 past which the air must move The baffle 56 is s'upported by: the closure 23 by means of a central post 58 threaded into a boss 59 on the underside of the closure 23.

Under certain conditions of operation it is necessary to move the operating handle 13 downward as may be necess'ary' to. clean beneath tables, chairs or the like.

Under such condition of operation the tank 20 may take the position as seen in'Fig. 2A, a't which time the partition 42"or baffle operates, to maintain the body of liquid 39 liquid entrained in the aira's before being removed by thebaflle56. V Upon return of the cleaner 10 to the position seen in t E t 1 Fig. 1, any liquid entrapped in the chamber 53 new overthe top of the baflie 42 back into the lower chamber 50.

The tank 20 may be readily removed from the operating handle 13, its closure 23 opened, and the hose clamp 49 released so that the tank may be discharged of its contaminated liquid in a manner readily understood. The tank may be readily refilled once more through its top opening, and can be readily filled to a desired level ascertained by inspection. Preferably, the level of the liquid within chamber 50 ,is maintained just below the level of the passageway 47.

From the foregoing description it will be evident that there has been provided a novel anduseful apparatus for separating the dust from the dust laden air resulting from operation of a portable suction cleaner. While the invention has been described in terms of a preferred embodiment thereof its scope is intended to be limited only by the claim-h'ere appended.-

A device of the class described for removing dust from dust laden gases comprising a walled tank-having sides and a bottom, a solid partition within said tank and engag'ed at one endwith one side of the tank and'extending toward the other side of the tank at an angle to{ divide-- said tank into an upper chamber and a lower 'cha'mher' for-containing liquid, means forconducting dust l'aden gases beneath the surface-of a quantity of liquid 6011:

tamed-in said lower'chamber for scrubbing of 'sa'id dust laden gases by bubbling thereof through said liq'uid,*an

opening in said partition through which the scrubbed? gasesmus't move in passingto said upper chamber, said partition opening being'disp'osed closely to a wall'ofsaid I tank at-the other side thereof, said means including a tube extending from the bottom of the tank 'throughsaid lowerchamber andthrou'gh said partition nearthe engaged end thereof and into said upper chamber, said time being" reversely bent and extended back through said partition .anear said partition opening and terminating in a dis'char'ge' end which is disposed in said lower chamber and which is directed away from said partition opening and toward 1 the engaged end of said partition, and said partition being inclined with respect'to. the walls of saidtankso that the engaged end thereof is 1 spaced a predetermined distance 1,226,589 1,839,582 Nordhem 1511.5,1932 2,062,728' Roberts Dec; 1,1936

Minerley Nov." 2; 1954 

